2007 grand marquis i have no heat only blows cold air

60

Asked by Oct 16, 2012 at 07:33 PM about the 2007 Mercury Grand Marquis GS

Question type: Maintenance & Repair

my a/c works, but i have no heat or defrosters. When I need heat i only get cold air

3 Answers

915

Does your temp gauge bonce around or stay flat to one point of the scale as well when you try to run the heater?

11 out of 11 people think this is helpful.
Best Answer
60

No/ Now I am getting hot air when the air condition is on. but this only happens once and while?

6 out of 6 people think this is helpful.
915

Hmmm could be a sensor in the AC unit control. Also if havn't checked the AC coolant you may have a need to have it serviced an recharged.

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